/*
* 渐变动画
* 自定义route动画
* 更多路由动画直接看：
* https://github.com/ahyangnb/flutter-advanced-book/blob/master/docs/chapter2/route.md
* https://github.com/fluttercandies/nav_router/tree/master/lib/routers
*
* 也可以使用全局路由来管理:NavigatorKey
* https://github.com/ahyangnb/flutter-advanced-book/blob/master/docs/chapter2/my_route.md
* */
import 'package:flutter/material.dart';

class FadeRoute extends PageRouteBuilder {
  // 传过来的页面page
  final Widget page;

  // 构造
  FadeRoute({this.page})
      : super(
            pageBuilder: (
              BuildContext context,
              Animation<double> animation,
              Animation<double> secondaryAnimation,
            ) =>
                page,
            transitionsBuilder: (
              BuildContext context,
              Animation<double> animation,
              Animation<double> secondaryAnimation,
              Widget child,
            ) =>
                FadeTransition(
                  opacity: animation, // 透明度
                  child: child, // 页面存放
                ));
}
